. >> reporter: but the rebels making inroads on damascus itself, monitoring of syrian bases like there where chemical weapons are stored has detected evidence the assad regime may be preparing to use them in a last-ditch attempt to save themselves, an act the obama administration has warned could trigger military intervention. worst-case scenarios are threatening to become reality. >> it's not going to be a clean outcome in the best of circumstances, and now it will be chaotic and messing. >> reporter: the u.s. is helping to organize the opposition's military command, and later this week is expected to officially recognize its political leadership. what impact that has on the outcome of the civil war remains to be seen. david martin, cbs news, the pentagon. >>> in egypt, opponents of president mohamed morsi are calling for another massive protest tomorrow. thousands of demonstrators took to the streets sunday. they're demanding morsi can sell the december 15th vote to the draft resolution. they're also rejecting last month's decree which pretty much makes morsi a dictator. >>> south af